summaryrefslogtreecommitdiffstats
path: root/amdgpu/amdgpu_device.c
diff options
context:
space:
mode:
Diffstat (limited to 'amdgpu/amdgpu_device.c')
-rw-r--r--amdgpu/amdgpu_device.c316
1 files changed, 316 insertions, 0 deletions
diff --git a/amdgpu/amdgpu_device.c b/amdgpu/amdgpu_device.c
new file mode 100644
index 0000000..aeb5e3c
--- /dev/null
+++ b/amdgpu/amdgpu_device.c
@@ -0,0 +1,316 @@
+/*
+ * Copyright 2014 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+/**
+ * \file amdgpu_device.c
+ *
+ * Implementation of functions for AMD GPU device
+ *
+ */
+
+#include <sys/stat.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "xf86drm.h"
+#include "amdgpu_drm.h"
+#include "amdgpu_internal.h"
+#include "util_math.h"
+
+#define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
+
+static pthread_mutex_t dev_mutex = PTHREAD_MUTEX_INITIALIZER;
+static amdgpu_device_handle dev_list;
+
+static int fd_compare(int fd1, int fd2)
+{
+ char *name1 = drmGetPrimaryDeviceNameFromFd(fd1);
+ char *name2 = drmGetPrimaryDeviceNameFromFd(fd2);
+ int result;
+
+ if (name1 == NULL || name2 == NULL) {
+ free(name1);
+ free(name2);
+ return 0;
+ }
+
+ result = strcmp(name1, name2);
+ free(name1);
+ free(name2);
+
+ return result;
+}
+
+/**
+* Get the authenticated form fd,
+*
+* \param fd - \c [in] File descriptor for AMD GPU device
+* \param auth - \c [out] Pointer to output the fd is authenticated or not
+* A render node fd, output auth = 0
+* A legacy fd, get the authenticated for compatibility root
+*
+* \return 0 on success\n
+* >0 - AMD specific error code\n
+* <0 - Negative POSIX Error code
+*/
+static int amdgpu_get_auth(int fd, int *auth)
+{
+ int r = 0;
+ drm_client_t client = {};
+
+ if (drmGetNodeTypeFromFd(fd) == DRM_NODE_RENDER)
+ *auth = 0;
+ else {
+ client.idx = 0;
+ r = drmIoctl(fd, DRM_IOCTL_GET_CLIENT, &client);
+ if (!r)
+ *auth = client.auth;
+ }
+ return r;
+}
+
+static void amdgpu_device_free_internal(amdgpu_device_handle dev)
+{
+ amdgpu_device_handle *node = &dev_list;
+
+ pthread_mutex_lock(&dev_mutex);
+ while (*node != dev && (*node)->next)
+ node = &(*node)->next;
+ *node = (*node)->next;
+ pthread_mutex_unlock(&dev_mutex);
+
+ close(dev->fd);
+ if ((dev->flink_fd >= 0) && (dev->fd != dev->flink_fd))
+ close(dev->flink_fd);
+
+ amdgpu_vamgr_deinit(&dev->vamgr_32);
+ amdgpu_vamgr_deinit(&dev->vamgr);
+ amdgpu_vamgr_deinit(&dev->vamgr_high_32);
+ amdgpu_vamgr_deinit(&dev->vamgr_high);
+ handle_table_fini(&dev->bo_handles);
+ handle_table_fini(&dev->bo_flink_names);
+ pthread_mutex_destroy(&dev->bo_table_mutex);
+ free(dev->marketing_name);
+ free(dev);
+}
+
+/**
+ * Assignment between two amdgpu_device pointers with reference counting.
+ *
+ * Usage:
+ * struct amdgpu_device *dst = ... , *src = ...;
+ *
+ * dst = src;
+ * // No reference counting. Only use this when you need to move
+ * // a reference from one pointer to another.
+ *
+ * amdgpu_device_reference(&dst, src);
+ * // Reference counters are updated. dst is decremented and src is
+ * // incremented. dst is freed if its reference counter is 0.
+ */
+static void amdgpu_device_reference(struct amdgpu_device **dst,
+ struct amdgpu_device *src)
+{
+ if (update_references(&(*dst)->refcount, &src->refcount))
+ amdgpu_device_free_internal(*dst);
+ *dst = src;
+}
+
+drm_public int amdgpu_device_initialize(int fd,
+ uint32_t *major_version,
+ uint32_t *minor_version,
+ amdgpu_device_handle *device_handle)
+{
+ struct amdgpu_device *dev;
+ drmVersionPtr version;
+ int r;
+ int flag_auth = 0;
+ int flag_authexist=0;
+ uint32_t accel_working = 0;
+ uint64_t start, max;
+
+ *device_handle = NULL;
+
+ pthread_mutex_lock(&dev_mutex);
+ r = amdgpu_get_auth(fd, &flag_auth);
+ if (r) {
+ fprintf(stderr, "%s: amdgpu_get_auth (1) failed (%i)\n",
+ __func__, r);
+ pthread_mutex_unlock(&dev_mutex);
+ return r;
+ }
+
+ for (dev = dev_list; dev; dev = dev->next)
+ if (fd_compare(dev->fd, fd) == 0)
+ break;
+
+ if (dev) {
+ r = amdgpu_get_auth(dev->fd, &flag_authexist);
+ if (r) {
+ fprintf(stderr, "%s: amdgpu_get_auth (2) failed (%i)\n",
+ __func__, r);
+ pthread_mutex_unlock(&dev_mutex);
+ return r;
+ }
+ if ((flag_auth) && (!flag_authexist)) {
+ dev->flink_fd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
+ }
+ *major_version = dev->major_version;
+ *minor_version = dev->minor_version;
+ amdgpu_device_reference(device_handle, dev);
+ pthread_mutex_unlock(&dev_mutex);
+ return 0;
+ }
+
+ dev = calloc(1, sizeof(struct amdgpu_device));
+ if (!dev) {
+ fprintf(stderr, "%s: calloc failed\n", __func__);
+ pthread_mutex_unlock(&dev_mutex);
+ return -ENOMEM;
+ }
+
+ dev->fd = -1;
+ dev->flink_fd = -1;
+
+ atomic_set(&dev->refcount, 1);
+
+ version = drmGetVersion(fd);
+ if (version->version_major != 3) {
+ fprintf(stderr, "%s: DRM version is %d.%d.%d but this driver is "
+ "only compatible with 3.x.x.\n",
+ __func__,
+ version->version_major,
+ version->version_minor,
+ version->version_patchlevel);
+ drmFreeVersion(version);
+ r = -EBADF;
+ goto cleanup;
+ }
+
+ dev->fd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
+ dev->flink_fd = dev->fd;
+ dev->major_version = version->version_major;
+ dev->minor_version = version->version_minor;
+ drmFreeVersion(version);
+
+ pthread_mutex_init(&dev->bo_table_mutex, NULL);
+
+ /* Check if acceleration is working. */
+ r = amdgpu_query_info(dev, AMDGPU_INFO_ACCEL_WORKING, 4, &accel_working);
+ if (r) {
+ fprintf(stderr, "%s: amdgpu_query_info(ACCEL_WORKING) failed (%i)\n",
+ __func__, r);
+ goto cleanup;
+ }
+ if (!accel_working) {
+ fprintf(stderr, "%s: AMDGPU_INFO_ACCEL_WORKING = 0\n", __func__);
+ r = -EBADF;
+ goto cleanup;
+ }
+
+ r = amdgpu_query_gpu_info_init(dev);
+ if (r) {
+ fprintf(stderr, "%s: amdgpu_query_gpu_info_init failed\n", __func__);
+ goto cleanup;
+ }
+
+ start = dev->dev_info.virtual_address_offset;
+ max = MIN2(dev->dev_info.virtual_address_max, 0x100000000ULL);
+ amdgpu_vamgr_init(&dev->vamgr_32, start, max,
+ dev->dev_info.virtual_address_alignment);
+
+ start = max;
+ max = MAX2(dev->dev_info.virtual_address_max, 0x100000000ULL);
+ amdgpu_vamgr_init(&dev->vamgr, start, max,
+ dev->dev_info.virtual_address_alignment);
+
+ start = dev->dev_info.high_va_offset;
+ max = MIN2(dev->dev_info.high_va_max, (start & ~0xffffffffULL) +
+ 0x100000000ULL);
+ amdgpu_vamgr_init(&dev->vamgr_high_32, start, max,
+ dev->dev_info.virtual_address_alignment);
+
+ start = max;
+ max = MAX2(dev->dev_info.high_va_max, (start & ~0xffffffffULL) +
+ 0x100000000ULL);
+ amdgpu_vamgr_init(&dev->vamgr_high, start, max,
+ dev->dev_info.virtual_address_alignment);
+
+ amdgpu_parse_asic_ids(dev);
+
+ *major_version = dev->major_version;
+ *minor_version = dev->minor_version;
+ *device_handle = dev;
+ dev->next = dev_list;
+ dev_list = dev;
+ pthread_mutex_unlock(&dev_mutex);
+
+ return 0;
+
+cleanup:
+ if (dev->fd >= 0)
+ close(dev->fd);
+ free(dev);
+ pthread_mutex_unlock(&dev_mutex);
+ return r;
+}
+
+drm_public int amdgpu_device_deinitialize(amdgpu_device_handle dev)
+{
+ amdgpu_device_reference(&dev, NULL);
+ return 0;
+}
+
+drm_public int amdgpu_device_get_fd(amdgpu_device_handle device_handle)
+{
+ return device_handle->fd;
+}
+
+drm_public const char *amdgpu_get_marketing_name(amdgpu_device_handle dev)
+{
+ if (dev->marketing_name)
+ return dev->marketing_name;
+ else
+ return "AMD Radeon Graphics";
+}
+
+drm_public int amdgpu_query_sw_info(amdgpu_device_handle dev,
+ enum amdgpu_sw_info info,
+ void *value)
+{
+ uint32_t *val32 = (uint32_t*)value;
+
+ switch (info) {
+ case amdgpu_sw_info_address32_hi:
+ if (dev->vamgr_high_32.va_max)
+ *val32 = (dev->vamgr_high_32.va_max - 1) >> 32;
+ else
+ *val32 = (dev->vamgr_32.va_max - 1) >> 32;
+ return 0;
+ }
+ return -EINVAL;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-29 08:59:05 +0000